WO1990002012A1

WO1990002012A1 - Electrodeposition reamer tool

Info

Publication number: WO1990002012A1
Application number: PCT/JP1989/000888
Authority: WO
Inventors: Hiroyuki Kitabayashi; Tadayuki Ishikawa; Hiroyuki Kuroda; Yoshihiko Nakakoji; Masaki Nobuhara
Original assignee: Kabushiki Kaisha Komatsu Seisakusho
Priority date: 1988-08-30
Filing date: 1989-08-30
Publication date: 1990-03-08
Also published as: DE68921604D1; KR900701445A; DE68921604T2; KR0148220B1; EP0389637A1; US5178497A; EP0389637A4; EP0389637B1

Abstract

This invention relates to an electrodeposition reamer tool (1) used for precision inner diameter boring. In this electrodeposition reamer tool (1), a work machining portion (3) in a reamer main body is composed of a finish machining portion (4) having a cylindrical outer peripheral surface and a tapered cut machining portion (5) disposed at the tip side of the finish machining portion (4), and abrasive grains (6) are electrodeposited on the outer peripheral surfaces of the finish machining portion (4) and the cut machining portion (5). When the electrodeposition reamer tool (1) is fitted into a blank hole in a work, the hole is expanded by the cut machining portion (5) and the inner surface of the hole is finish-machined by the finish machining portion (4). Accordingly, a precision inner diameter hole having a predetermined dimension can be formed without precision pre-machining of the blank hole.

Description

Ming in]

Electro-deposition reminder tool technology field

The present invention relates to an electrodeposition reamer tool used for precision inner diameter hole machining. Northern technology

An example of an electrodeposition reamer that has been used in the past is the wrapping grease disclosed in Japanese Utility Model Publication No. 60-0 5 3 4 2 7 publication. Ma (Takezawa Seiki application)

As shown in Fig. 22, the reamer A is located at the tip of the reamer main body (base metal) B, and the ヮ -Caroje portion C is provided over its entire length. It has a cylindrical shape. Abrasive grains D are electrodeposited on the outer peripheral surface of the machined portion C, and a set bolt having a pressing member (not shown) enclosed in the machined portion C is provided at the end. Therefore, the diameter is set by thread expansion and the diameter is set, and the grain size of the electrodeposited abrasive is controlled to obtain ¾1 accuracy. The reference symbol D in the figure is a slit formed in the work portion c.

In this case, the electrodeposition reamer tool A has the electrodeposition portion of the abrasive grains as described above, that is, the C-shaped column of the C-working portion. Therefore, it is not possible to take a large allowance for the pilot hole that is formed in one shot. Further, since the above-mentioned electrodeposition reamer tool A controls the surface roughness by controlling the working abrasive grain size, the surface roughness is increased accordingly. It is necessary to set a small allowance for the prepared hole formed in the above work.

Therefore, in order to machine a precision inner diameter hole using the electrodeposited reaming tool A, a work is used to pre-process a prepared hole with dimensional accuracy close to the target and surface roughness. Therefore, the pre-machining process was extremely complicated, which was a disadvantage.

In view of the above situation, the present invention provides an electrodeposition reamer tool that does not require a complicated pre-processing step and can perform highly accurate precision inner diameter hole machining with high efficiency. This is the purpose of the disclosure of the

The electrodeposition reamer tool according to the present invention has a finishing portion having a cylindrical outer peripheral surface and a tapered cutting portion provided on the tip side of the finishing portion. These are constructed by electrodepositing abrasive grains on the outer peripheral surfaces of both processed parts.

According to this configuration, the electrodeposition reamer tool is inserted into the work-formed prepared hole, and the prepared hole is prepared by the cutting part. In addition to being enlarged, it is finished to the desired hole diameter by the finishing part.

Therefore, the electrodeposition reamer tool described above enables a large allowance for the prepared hole, so it is necessary to pre-process the prepared hole precisely. No pre-processing process A simple explanation of the drawing that makes it extremely easy

The figure is a conceptual overall side view showing the first embodiment of the electrodeposition reamer tool according to the present invention.

Fig. 2 is a conceptual overall side view showing the second embodiment, Fig. 3 is a cross-sectional side view of the essential parts of the electrodeposition reamer tool, and Fig. 4 is an electric view showing the third embodiment. End view of the wearing tool,

Fig. 5 is a side view of the main part of the same electrodeposition reamer tool, and Fig. 6 is a cross-sectional side view of the main part showing the state in which abrasive grains are electrodeposited on the finishing part and the cutting part.

Fig. 7 is a side view of the cross section of the main part showing the state in which the abrasive grains are trued in,

Fig. 8 is a cross-sectional side view of the essential part showing the state in which the abrasive grains are trued in, which is the fourth embodiment.

Figure 9 is a graph showing the relationship between surface roughness and machining length.

Fig. 10 shows a side view of the essential parts of the electrodeposition reamer tool showing the fifth embodiment.

Fig. 11 shows the end view of the same electrodeposition reamer tool, and Fig. 12 shows the A-A line cross section of Fig. 11 1.

Figure 13 shows a graph showing the relationship between surface roughness and machining length.

Fig. 14 Fig. 6 Main part of the electrodeposition reamer tool showing the sixth embodiment Cross section side view,

Fig. 15 is a side view of the entire body of the reamer used in the electrodeposition reamer tool of the sixth embodiment.

Figure 16 is a sectional view taken along the line A-A in Figure 15

Figure 17 is a sectional view taken along the line B-B in Figure 15

Figure 18 shows a cross-sectional side view of the main part of the reamer body shown in Figure 15

Fig. 19 is a cross-sectional side view of the main part of an electrodeposition reamer tool in which the outer peripheral surface of the machined part is formed in a straight line in the axial cross section. Fig. 20 shows the oil hole position. Calculation chart for

Fig. 21 is an explanatory view of each part of the work part, and Fig. 22 is an overall side view showing a conventional electrodeposition re-imaging tool. Best mode for carrying out the invention.

Hereinafter, the present invention will be described in detail with reference to the drawings showing some embodiments shown in FIGS. 1 to 21.

FIG. 1 shows a first embodiment of the electrodeposition reaming tool according to the present invention.

In this electrodeposition reamer tool 1, the work part 3 of the reamer main body 2 is provided on the tip side of the finishing part 4 having a cylindrical outer peripheral surface and this finishing part 4. It is composed of the provided tapered cutting part 5 and force.

The finishing section 4 and the cutting section 5 are both reamed. It is formed coaxially along the center axis of rotation of the main body 2 and has a circular cross section orthogonal to the above-mentioned center of rotation. In addition, the above-mentioned machined part 5 has a base end formed to have the same diameter as the above-mentioned machined part 4, and its diameter gradually decreases as it goes to the tip. It is formed as follows. The outer peripheral surface of the cutting part 5 is formed in a straight line in the cross section in the gall direction.

On the outer peripheral surface of the finishing portion 4 and the cutting portion 5, abrasive grains 6 for machining are respectively fixed by electrodeposition o.

The abrasive grains 6 electrodeposited on the above-mentioned finishing processing part 4 have been subjected to anoiling and have a flat cutting edge, while the above-mentioned cutting processing part 5 is electrodeposited. Abrasive grain 6 has no sharpening and has a sharp cutting edge.

When performing hole drilling with the electrodeposited reaming tool 1 having the above configuration, first insert the electrodeposited reaming tool 1 into the prepared hole of the work, then The above pilot hole is enlarged. In this case, the tapered cutting part 5 has a guiding effect.

Next, if the electrodeposition reaming tool 1 is not inserted further, the finishing part 4 finishes the inner surface of the hole, and the work is formed with a hole of a predetermined size. R.

That is, with the electrodeposition reamer tool having the above configuration], it is possible to form a hole of a predetermined size in the work without precisely machining the prepared hole. Ru On the other hand, as described above, the abrasive grains 6 electrodeposited on the finishing section 4 have a flat cutting edge and are flattened on the cutting section 5 to the cutting section 5. The inner surface of the enlarged hole is then polished by this flat cutting edge, and the hole diameter is determined, the surface roughness, and the roundness are corrected.

Further, since the abrasive grains 6 electrodeposited on the finishing portion 4 have a flat tip, the contact area with the inner surface of the hole is large, and thus the reaming tool 1 described above is used. The surface roughness of the inner surface of the hole does not deteriorate even if the feeding speed of the

Therefore, there is a case where the hole is drilled using the electrodeposition reaming tool 1 related to the present invention, and a case where the hole is drilled using the conventional electrodeposition reaming tool. Table 1 shows the comparison of

Machining size ø 2 5 4 5 L

Work Material: FC 25 With this surface force, the electrodeposition re-imaging tool 1 according to the present invention is also apparent, and the machining cost is increased and the delivery is improved. At the same time, the same machining accuracy as that of conventional tools is obtained, and with conventional tools, surface roughness of about 6 squares is required for pre-processing, and it is necessary to perform roughing and finishing in two steps. A tool for one tool was required for each, but the electrodeposition reaming tool of the present invention does not affect the surface roughness during pre-machining, and one tool achieves the required accuracy. You can play.

2 and 3 show a second embodiment of the electrodeposition reamer tool according to the present invention.

As shown in Fig. 3, the electrodeposition reamer tool 10 has an outer circumferential surface 1 2 a of the cutting processing portion 1 2 in the shaving working portion 1 1 in the axial direction. In addition to being curved in a cross section, in other words curved and formed, the cutting portion 12 has a ceramic force such as T i N. The outer surface shape of the above-mentioned machined part and the configuration other than the ceramics coating are the same as those of the first embodiment. Basically the same as the reamer tool 1, the reference numeral 13 in Fig. 2 is the finishing portion, 14 is the reamer body, 15 is the abrasive grain of the finishing portion, and 16 is the cutting processing. Abrasive grain of the part, and 17 indicates the ceramics coating.

When a hole is drilled with the electrodeposition reamer tool 1 ◦ with the above configuration, the cutting tool part 1 2 and the work will be affected by the action of the above ceramics. The frictional resistance with the inner surface of the prepared hole decreases. Therefore, the generation of frictional heat is suppressed, and It is possible to prevent inconveniences, such as welding to the cutting area, expansion of the processing hole diameter, and shavings on the processing surface. Compared to the nickel used for the abrasive grain fixing mes- sage layer, the dust is less likely to adhere to chips. Therefore, the chip bokeh force and the separation of the chips are easy, and the increase in the diameter of the processing hole and the removal of the machined surface can be prevented. According to the result of the experiment, the hole can be drilled using the electrodeposition re-imaging tool 10 according to the present embodiment. The surface roughness, roundness, and cylindricity are the same as 2 in comparison with the case where the hole is added using the electrodeposited reaming tool 1 of the first embodiment shown. However, even if the feed is increased from 2 mm / rev force to 3 mm / rev, the machining accuracy equivalent to that of the electrodeposited reaming tool 1 of the first embodiment can be obtained. It was That is, the processing efficiency can be increased by 1.5 times. In this case, the material of the work used in the experiment is FC 2 5 and the working dimension is Φ 2 5 4 5 L mm. The peripheral speed is 20 m / min.

4 to 7 show a third embodiment of the remote control device according to the present invention.

The electrodeposition reamer tool 30 has the work part 32 of the reamer main body 31 and the tip of the finishing part 3 3 having a cylindrical outer peripheral surface and the finishing part 3 3 thereof. It is composed of a tapered cutting part 3 4 provided on the side. In addition, divide the outer peripheral surface of the above-mentioned work part 32 into equal parts. Tree 7 Multiple notches that extend along the central axis of the main body 3 1 3 2 a, 3 2 a, ... Forces are formed.

On the outer peripheral surface of the finish processing part 33, relatively small force, and the abrasive grains 35 are fixed by welding, and the cutting processing part 34 Abrasive grains 36, which have a larger grain size than the above-mentioned abrasive grains 35, are fixed to the outer peripheral surface by welding. In the third embodiment, as shown in Fig. 7, only the abrasive grains 35 electrodeposited on the finishing machined portion 3 3 were subjected to the swelling. ..

According to the electrodeposition reaming tool 30 having the above-described structure, the abrasive grains 3 6 having a large grain size in the cutting portion 3 4 are used for drilling a hole. In addition to cutting the prepared hole with high efficiency, the inner surface of the hole is the same as that of the finishing processing part 3 3 with a finely tuned abrasive grain 3 6 Slide to finish. During the above hole drilling, chips are discharged through the notches 3 2 a, 3 2 a, ... on the outer peripheral surface of the drilling part.

Fig. 9 shows an electrodeposition reaming tool with # 100CBN abrasive grains fixed on the outer peripheral surface of the finishing and cutting portions.

(Called tool N 0.1) and the # 100

In addition to fixing the CBN abrasive grains and performing the truing, the cutting tool also solidifies the CBN abrasive grains of # 80 with Rjt. 2)).

From Fig. 9, it is clear that the tool N 0.2 has a processing length that is approximately 1.5 times longer than that of tool N 0.1. It's power. This is a tool as shown in Fig. 7. N ο .2 In other words, the abrasive grain with a large grain size

In the electrodeposited reaming tool 30 in which 3 6 is fixed, the chip pocket due to the gap between the abrasive grains is large and clogging is caused by chips. It is thought that this is due to the frequency of occurrence.

On the other hand, in the electrodeposition reaming tool 3 ◦ according to the present embodiment, the abrasive grains 35 of the finishing machined part 3 3 perform only the burnishing action, so that the conventional electrodeposition is performed. The diameter of the tool can be made smaller than that of the reaming tool, and also the finished surface roughness can be improved. In addition, since the abrasive grains 3 6 of the machined part 3 4 have a large grain size, it is possible to take a large stock removal allowance, and it is possible to use the two-pass type that has been used in the past. Eliminates the need for multiple machining processes (3

The electrodeposited reamer tool 40 of the fourth embodiment shown in Fig. 8 has a large abrasive grain size 4 6 at the tip of the outer peripheral surface of the cutting portion 4 4. In addition to the fixed S5C, the outer peripheral surface of the cutting processing section 4 4 and the outer peripheral surface of the finishing section 4 3 and the outer peripheral surface of the finish processing section 4 3 are fixed with S5C. However, in S, only the solid abrasive grains 4 5 in the finishing portion 4 3 were subjected to truing, and the other composition was electrodeposited in the third embodiment. It is basically the same as the reaming tool 30. The abrasive grain 4 5 is the CBN abrasive grain of # 100 and the abrasive grain 4 6 is the C ΒΝ abrasive grain of # 80.

The above-mentioned electrodeposition reamer tool 40 (referred to as tool N 0.3) and the above-mentioned tool N 0.1 and tool N 0.2 As shown in Fig. 9, the tool No. 3 has a slightly longer machining length than the tool No. 0.2, as shown in Fig. 9.

This is because there was no large abrasive grain with a large amount of truing near the boundary between the finished processed part 33 and the cut processed part 34 shown in Fig. 7. Therefore, it is thought that it is due to clogging

In this example, we explained using CBN abrasive grains of # 100, # 8 ◦, but this choice was for surface roughness, roundness, and cylinder. It is not necessary to say that this is an example in which the degree is set to 2 〃, and it can be changed variously depending on the required accuracy. Shows the fifth example of the electrodeposition remae tool involved

This electrodeposited remapping tool 5 ◦ extends along the center axis so as to equally divide the outer peripheral surface of the work part 5 1 into the work part 5 1 having a circular cross section. Multiple cutouts 5] a, 1… are formed

In addition, abrasive grains are fixed by electrodeposition on the outer peripheral surfaces of the finish processing section 5 2 and the cutting processing section 5 3 in the single processing section 5 1.

In addition, the upper reamer tool 50 has an oil supply passage 5 4 drilled along the center axis of rotation and the oil supply passage. 5 4 and a plurality of oil holes 5 5, 5 5, ... that communicate with the part where the notch 5 1 a in the outer peripheral surface of the machined part 5 3 is not formed. Is formed It is

As shown in Fig. 12 above, the oil hole 5 5 is opened in the direction from the oil supply passage 5 4 toward the tool tip, in other words, the rotation center $. On the other hand, it is extended so as to be inclined toward the tip end, and the opening is formed in the outer peripheral surface of the above-mentioned machined part 5 3 at approximately the center in the length direction.

When a hole is drilled by the electrodeposited reaming tool 50 having the above-mentioned structure, first, the cutting portion 5 3 expands the prepared hole provided in the work.

In this case, since the cutting part 5 3 is responsible for most of the inner diameter 'machining, the machining load is large, and the clogging by the chips is the most prominent.

However, there is an oil supply passage in the cutting section 5 3 above.

Since the machining fluid is supplied via 5 4 and the oil hole 5 5, the chips adhering to the cutting machining section 5 3 are also washed away by this machining fluid. Let's do it.

Moreover, since the infinite hole 5 5 is opened on the outer peripheral surface of the cutting portion 5 3, it is possible to always apply a constant working fluid pressure to the working point. The supply of the machining liquid to the outer peripheral surface of the work part 5 1 other than the machining point is performed from the outside of the tool 5 ◦ via the notch 5 1 a. R.

Figure 13 shows a comparison between the electrodeposited reaming tool 50 according to the present embodiment and an electrodeposited reaming tool without a conventional oil wheel. It is shown in the graph of the relationship with Sa. According to this, the present embodiment, that is, oil In the electrodeposited reaming tool equipped with a hole, the clogging due to the cutting chips is reduced, and the length of the surface where the finished surface begins to deteriorate is extended. .. In other words, with tools without oil wheels, it is difficult to improve the processing conditions because they are clogged by cutting chips, but it is necessary to install oil wheels. This makes it possible to improve the processing conditions.

In addition, it has been difficult to perform electrodeposition re-milling for work materials that produce long chips such as AI and Ni alloys. By providing the oil holes, the processing conditions were restricted, but the processing was possible.

14 to 18 show a sixth embodiment of the electrodeposition reamer tool according to the present invention.

As shown in Fig. 14, as shown in Fig. 14, the electrodeposited reaming tool 60 has a forked processing part 61, a finishing processed part 6 2 having a cylindrical outer peripheral surface, and an outer peripheral surface with an axial cross section. In this case, it is composed of a machined part 6 3 formed in an R shape and an abrasive grain 6 4 is electrodeposited on the outer peripheral surfaces of both machined parts 6 2 and 6 3. In addition, the abrasive grains fixed in the finishing section 6 2 above are subjected to the pulling, and the rough processing is performed between points A and B in Fig. 13-3. The intermediate finishing is performed between points B and C, and the finishing machining is performed from point C onward in the finished finishing section 62 with the lining.

On the other hand, as shown in Figs. 15 to 18, as shown in Figs. 15 to 18, the outer peripheral surface of the reamer body of the electrodeposition reamer tool 6 ◦ has a plurality of cuts extending along the center axis of rotation. Missing 6 1 a, 6 1 a, … Has been formed. Further, in the above electrodeposition reamer tool 60, an oil supply passage 6 is bored along the central axis of rotation, and the oil supply passage 6 5 is formed. An oil hole 6 6 that communicates with the outer peripheral surface of the work part 61 is formed, and the outer surface of the work part 6 1 has the above-mentioned oil. An oil reservoir 6 7 is formed that opens the hole 6 6.

Here, Fig. 19 relates to the main body ^ in which the outer peripheral surface of the cut processing portion 7 2 in the work processing portion 7 1 is formed into a straight line in the axial cross section. Electroplated reamer tool 7 ° is shown.

The work part 7 1 of this electrodeposited remapping tool 70 is a cutting part 7 2 that mainly performs roughing, and a finishing part 7 3 that performs finishing. Since the grain size of the electro-deposited abrasive grains 74 is always variable, the number of abrasive grains that actually affect machining is the number of abrasive grains. 7 It increases between points A and B in the first half of point 2 and between points B and C in the latter half, and the size of the chip pocket decreases conversely. These points B to C are important as parts that are responsible for machining equivalent to semi-finishing, and it is possible to move from rough machining (between points A and B) to finish machining (after the point). Need to move to. In order to stabilize the machining between points B and C, it is necessary to widen the range, but the taper shape has a taper angle of 1 degree or less, which is very small. It was difficult to manufacture, and it was necessary to take a lot of tool removal cost. If the machining conditions are further increased, chips will be clogged between points B and C, and the cutting part 7 Even if an on-hole is installed in 2, it is not possible to sufficiently prevent clogging.

On the other hand, in the sixth embodiment of the electrodeposited reaming tool 60, as shown in FIG. It consists of a finishing part 6 2 (point C and after) and a cutting part 6 3 (between points A and C) whose outer peripheral surface is formed into an R shape in the ώ direction cross section. Therefore, the middle finishing range (between points B and C) can be expanded more than the electrodeposition reaming tool 70 described above.

In addition, the number of abrasive grains 6 4 and the size of the nut pocket from roughing (between points A and B) to finishing force α (below point C) are two. It changes in a dimensional manner, and the state of application by the electrodeposition reaming tool 70 changes to a smooth force, and the rate of change is small as it approaches point c. A more stable finishing process is possible.

Here, the case where the hole is drilled using the electrodeposition reamer tool 6 ◦ of the sixth embodiment and the case where the electrodeposition reamer tool 70 shown in Fig. 19 is used. Table 2 shows a comparison with the case where hole drilling was performed.

2

Electroplating reaming tool 70 Electroplating reaming tool 80 Surface roughness Ry 2 Ry 1.5 βη Machining size: P21 X 45 i Circularity 2im 1.2 im Work material: FC25

Roundness 2fm 1.3 im i ≤ ri: 2mm / rev.

3 / 45mm 3 fls / 45min Cutting speed: 2Dm / min. Tool life 32m 48m Cutting allowance: 1 DD im / Φ As is clear from this table, according to the electrodeposition reaming tool 60 of this example, the surface roughness, cylindricity and circularity can be obtained under the same processing conditions. In addition to being improved, the tool life was about 1.5 times longer than that of the electrodeposition tool 70, and the power and force were increased.

On the other hand, when making holes with the above electrodeposition reamer tool 60, the oil supply passage 6 5, the oil wheel 6 6 and the oil reservoir 6 Since the work processing part 6 1 〖〖cutting liquid is supplied via 7, the chips adhering to the work processing part 6 1 above are pushed out and discharged by this. The clogging of the above-mentioned break processing part 6 1 is suppressed.

Here, Fig. 20 is a calculation diagram for determining the formation position of the oil wheel 6 6 in the electrodeposition tool 60, and the horizontal axis is the tool tip. (Base metal) Radius (mm) and vertical length of each part from the tool tip (mm) o

The figure is an explanatory view of each part of the work part 61. The machining allowance. (Radius) 0.05 mm. (T) Average grain diameter used G. 0.055 mm (s) Tool tip radius difference Q .2mm () Tool tip radius (base metal) ♦ · ♦ R

And

Length of R section… L = R * sin i cos " ¹

New paper R + (dst)

Position of part A ... '-(R + d) · sin cos

R + d

R + (d-s)

B part position… ^-(R + d) ♦ sin cos

It becomes R + d.

In the case of blind hole machining, if the tool removal allowance is up to 15 mm, the tool tip radius R is required to be less than 500 mm as shown in Fig. 20. When R = 500 mm, the tool part responsible for roughing and semi-finishing is from the (A) point on the — Ji 'curve in Figure 20 to the (B) point on the L curve. It becomes an area. Therefore, the optimum position for setting the oil wheel is the tool tip force, which is a force of 4 to 14 mm. Industrial availability

The electrodeposition reamer tool according to the present invention can be effectively applied when precision inner diameter hole drilling is performed on various works.

New paper

Claims

Scope of request 1. Finishing part with cylindrical outer peripheral surface,

It has a tapered cutting part provided on the tip side of the finishing part,

An electrodeposition reamer tool characterized in that abrasive grains are electro-deposited on the outer peripheral surface of the finishing machined portion and the outer peripheral surface of the cutting machined portion, respectively.

2. Electrodeposition reamer tool as set forth in claim 1 characterized in that the outer peripheral surface of the above-mentioned machined portion is formed in a straight line in the axial cross section.

3. The electrodeposition reamer tool according to claim 1, characterized in that the outer peripheral surface of the cut portion is formed by being curved in an axial cross section.

4. The electrodeposition reamer tool according to claim 1, characterized in that the abrasive grains electrodeposited on the finishing portion are subjected to a single swing.

5. Electrodeposition reaming tool according to claim 1, characterized in that the cutting portion is provided with ceramic coating.

6 .Electrodeposited at least at the tip of the outer peripheral surface of the above-mentioned machined part, and at the tip of the outer peripheral surface of the above-mentioned machined part, with larger grain size than the electrodeposited abrasive particles. Electroplated reamer tool according to claim 1 characterized by the following:

7. A plurality of notches extending along the center axis of rotation is formed on the outer peripheral surface of the finishing processing portion and the cutting processing portion, and the first aspect of the present invention is characterized by the first claim. Electroplated reaming tool described in paragraph

8) It has an oil supply passage extending along the center axis of rotation and an oil wheel connecting the oil supply passage and the outer peripheral surface of the cutting portion. Scope of request to be characterized Electroplated reamer tool described in paragraph 1

9. The electrodeposition remanufacturer as set forth in claim 8, characterized in that the oil wheel is installed so as to be inclined with respect to the rotation center axis and inclined toward the tip end direction. Ingredient

10. The electrodeposited solution according to claim 8 characterized in that an oil reservoir in which the oil holes are opened is formed on the outer peripheral surface of the cut portion. One mae tool

1 1 .The formation position of the above-mentioned oil wheel and the length of the above-mentioned oil reservoir are the prepared hole diameter of the work, the finishing diameter, the tool removal margin. The electrodeposition reamer according to claim 10 is characterized by being set from conditions such as tool tip radius.